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Finding the Third Proportional to 1,436 and 2,217

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Solution

The third proportional to 1,436 and 2,217 is: 3,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436 : 2,217 = 2,217 : x
  2. Step 2: Convert to fraction form
    1,436/2,217 = 2,217/x
  3. Step 3: Cross multiply
    1,436x = 2,217 × 2,217
  4. Step 4: Simplify right side
    1,436x = 4,915,089
  5. Step 5: Solve for x
    x = 4,915,089/1,436
  6. Step 6: Final answer
    x = 3,422.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.